Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D513/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
  • C07D513/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
  • C07D513/04—Ortho-condensed systems
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
  • C08K5/0041—Optical brightening agents, organic pigments
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/34—Heterocyclic compounds having nitrogen in the ring
  • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
  • C08K5/3462—Six-membered rings
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/16—Nitrogen-containing compounds
  • C08K5/34—Heterocyclic compounds having nitrogen in the ring
  • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
  • C08K5/3462—Six-membered rings
  • C08K5/3465—Six-membered rings condensed with carbocyclic rings
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
  • C08K5/45—Heterocyclic compounds having sulfur in the ring
  • C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B17/00—Azine dyes
  • C09B17/005—Dyes containing at least four ortho-condensed rings with at least two ring N-atoms in the system, e.g. fluoflavine, fluorubine, fluorindine
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B57/00—Other synthetic dyes of known constitution

Definitions

• Organic pigment dyestuffs must satisfy different demands depending upon the manner in which they are applied.
• the most stringent demands as to stability are made on a pigment to be used for spin-dyeing high-melting organic substances, such, for example, as linear polyesters, polyethylene or polypropylene and more especially superpolyamides.
• inorganic pigments were preponderantly used for this purpose.
• these inorganic pigments have the disadvantage that they produce weak dyeings and in addition fibers dyed therewith are of a rather dull shade. It has therefore been attempted to replace the inorganic pigments by organic pigments.
• the present invention constitutes a valuable advance in the art; it is based on the observation that compounds that are free from groups imparting solubility in water and correspond to the formula A N Y1 B where A and B each represents an arylene radical, more especially a benzene radical; n is a whole number from 1 to 6, more especially 1, 2 or 3; X and Y each represents an oxygen or sulfur atom or a group of the formula (in which R represents a hydrogen atom or an alkyl, cycloalkyl, aralkyl or aryl group)are excellently suitable for dyeing organic products in the mass.
• dyestuffs substituted at the nitrogen atoms there may be mentioned the compounds of the formulae I NTN ⁇ N N group (where R represents a hydrogen atom or an alkyl, cycloalkyl, aralkyl or aryl group) the compounds may contain, for example, an oxygen atom or more especially a sulfur atom, as is the case for example with the compounds of the formulae
• plastic products such as rubber, casein, polymerisation resins such as polyvinyl chloride and copolymers thereof, polyvinyl acetals, polyethylene, polypropylene, polystyrene and copolymers thereof with polyesters of unsaturated dicarboxylic acids with diols, polyacrylates and copolymers thereof, silicone and silicone resins.
• the pigments to be used in the present process are further suitable for the manufacture of colored condensation resins, more especially aminoplasts, for example urea-formaldehyde or melamine-formaldehyde resins, polyaddition resins such as epoxy, polyurethane or alkyd resins, as well as for the manufacture of colored lacquers containing one or several of the aforementioned resins in an organic solvent, or aqueous emulsions containing one or several of the aforementioned resins or precondensates, if desired in the presence of an organic solvent, for example an oil-in-water or water-in-oil emulsion.
• aminoplasts for example urea-formaldehyde or melamine-formaldehyde resins
• polyaddition resins such as epoxy, polyurethane or alkyd resins
• colored lacquers containing one or several of the aforementioned resins in an organic solvent
• aqueous emulsions containing one or several of
• Such emulsions are primarily suitable for impregnating or printing textile materials or other fiat materials such as paper, leather or glass fiber fabrics, if desired followed by curing at an elevated temperature.
• the pigments to be used in the present process are also suitable for the manufacture of spin-dyed fibers, for example viscose, cellulose esters or polyacrylonitrile. They can also be used with advantage for the manufacture of cosmetics.
• the pigments to be used in the present process are advantageously finely dispersed before application, for example by grinding the crude pigment in the dry or water-moist form with or without addition of an organic solvent and/or of a salt that can be washed out.
• the pigments to be used in the present process can be applied either in the pure form as so-called toners or in the form of preparations containing the pigment in a finely dispersed state, the particle diameter advantageously not exceeding 3
• Such preparations which may also contain the conventional additives, for example dispersants or binding agents, can be manufactured in known manner by intensive mechanical treatment, for example on roller mills or in suitable kneaders.
• the dispersant which facilitates the intensive working is adapted to the purpose in hand; for example for the manufacture of aqueous dispersible preparations, sulfite waste liquor or a dinaphthylmethane disulfonate will be used, while for the manufacture of acetate rayon spinning solutions a mixture of acetyl cellulose with a small amount of solvent is suitable.
• the dyestuffs are of special value for dyeing highmelting masses suitable for spinning such, for example, as polyamides, polyesters, polyethylene or polypropylene; the pigments may be added before, during or after the polycondensation or polymerisation respectively.
• Example 1 99 parts of shredded hexamethylenediamine adipamide are bread-crurnbed in the dry state with one part of the extremely finely dispersed dyestutf of the formula 1%
• the bread-crumbed shreds are spun by a conventional method, for example by the grid spinning method, at about 290 to 295 C.
• the resulting filament is of a brilliant yellow color and displays good properties of fastness to light and wetting.
• the dyestulf used above was prepared in the following manner: 5 parts of 2:3-dichloroquinox-aline are added at to C. to a suspension of 20 parts of orthoaminothiophenol and 016 part of sodium metal at a rate such that the temperature is maintained by the liberated heat of reaction. The mixture is then stirred for 30 minutes at C., allowed to cool, and the precipitate is suctioned off, thoroughly washed with ether and the sodium chloride formed is then washed out with water.
• Example 2 99 parts of a shredded hexamethylenediamine adipamide are bread-crumbed in the dry state with one part of the extremely finely dispersed fluorubine of the formula I N N m
• the bread-crumbed shreds are spun by a conventional method, for example by the grid spinning method, at about 290 to 295 C.
• the resulting filament is of a yellow color and displays good properties of fastness to light and wetting.
• Hans Altermatt et al. for example by simultaneous precipitation of a solution of a polyamide and of the pigment from concentrated sulfuric acid.
• Example 3 99 parts of shredded polyethylene terephthalate are bread-crumbed in the dry state with one part of the extremely finely dispersed dyestuif described in Example 2, first paragraph, and then spun from the melt by one of the conventional methods.
• the polyester filament so obtained is of yellow color and the dyeings possess outstanding fasltness properties.
• Example 4 99 parts of dry shredded polyethylene are mixed with 1 part of extremely finely dispersed dyestuff of the Formula 3. Mouldings are produced from this mixture in an injection moulding machine at 180 C.; the mouldings are of yellow color and possess outstanding properties of fastness.
• Example 5 One part of the dycstuft of the Formula 3 is extremely finely dispersed in an aqueous medium with a suitable dispersant and the dispersion is used for spin-dyeing 99 parts of viscose by one of the conventional methods.
• the spun filament displays a yellow shade which possesses outstanding properties of fastness.
• Example 6 A mixture of 40 parts of a nitrocellulose lacquer, 2,375'parts of titanium doixide 'and'0.125 part of fluorubin is ground for 16 hours in a rod mill. The resulting lacquer is brushed in a thin layer over an aluminum foil. The lacquer coat so produced is of a yellow shade which possesses very good fastness properties.
• Example 8 A mixture of 25 parts of fiuorubin, 25 parts of acetyl cellulose (54.5% combined acetic acid), 100 parts of sodium chloride and 50 parts of diacetone alcohol is worked with cooling in a kneader until the pigment has assumed the desired degree of fineness. 25 parts of water are then added and the whole is kneaded until a finely granular substance has been obtained which is then placed on a suction filter and the sodium chloride and the diacetone alcohol are completely washed out with water. The filter cake is dried in vacuo at and ground in a hammer mill.
• Example 9 A mixture of 0.25 part of fiuorubin, 40 parts of an alkyd-melamine stoving lacquer containing 50% of dyestuff, and 4.75 parts of titanium dioxide is ground for 24 hours in a rod mill. An aluminum foil is brushed With the resulting lacquer in a thin layer and then stoved for one hour at 120 C. The resulting yellow lacquer coat has good fastness to light.
• Example 10 A mixture of 4.8 parts of fluoflavine, 4.8 parts of the sodium salt of 1:1'-dinaphthylmethane-2:2-disulfonic acid and 22.1 parts of water is ground in a ball mill until all dyestuff particles are smaller than 11.4.. The pigment suspension obtained in this manner contains about 15% of pigment.
• Example 11 A dye bath is prepared which contains in 1000 parts of water:
• a dry cotton fabric is immersed at room temperature in the above dyebath, squeezed on a padder until its weight shows an increase of 65 to 80%, dried in the usual manner, if desired under tensoin (clip-stenter or tweezestenter) and finally cured for 5 minutes at 145 to 150 C.
• the resulting yellow dyeing is distinguished by excellent fastness properties, more especially by its fastness to light.
• Example 12 24 parts of fiuorubin are kneaded in a kneader with 10 parts of a condensation product from 1 mol of 2:6-
• the above preparation can be manufactured in the following manner:
• 800 parts of a solution of about 70% strength in butamol of a melamine-formaldehyde condensate modified with butanol are emulsified in an aqueous solution containing in 620.4 parts of water 80 parts of purified acid casein free from lactalbumen, 64 parts of urea, 16 parts of thiourea and 9.6 parts of borax.
• the moderately thickly liquid, finely dispersed emulsion is further mixed with 10 parts of an aqueous ammonia solution of about 25% strength for the purpose of converting the 0.82% of free formaldehyde, which is contained in the resin solution and which during the emulsific-ation migrates into the aqueous phase, into hexamethylenetetramine.
• the emulsion is diluted with a further 377 parts of water and then subjected to distillation under reduced pressure in a circulation-type of apparatus, about 500 parts of water and about 170 parts of butanol being distilled off. There are obtained about 1310 parts of a stable salve-like preparation which after having been diluted with an equal volume of water displays a pH value of 7.7. 1000 parts of the undiluted emulsion, mixed with about parts of an aqueous ammonium thiocyanate solution of 5 0% strength, yield a binding agent preparation which lends itself excellently to curing at an elevated temperature.
• the solvent content of the resin phase is reduced from about 30% to about 10%, while at the same time the total dry solids content of the emulsion is increased from about 45% to about 55%.
• Example 13 For making a laminate the following component plies are prepared:
• Sheets of equal size, for example, 2.75 x 12.5 meters, of the materials prepared as described above are placed one on top of the other in the following order: 3 to 5 sheets of paper (a), one sheet of paper (b), one sheet of paper (0), and if desired, one sheet of paper (d) and the sandwich is compressed between mirror-chromed plates for 12 minutes at to C. under a pressure of 100 kg./cm. then cooled to 30 C. and the laminate so formed is removed from the press. On one side it is of a yellow shade which has good fastness to light.
• a process for coloring a polyamide in the melt wherein there is incorporated in the polyamide a dyestufi" of the formula consisting of halogen atoms, alkyl, alkoxy, nitro and amino groups and n is a whole member from 1 to 3.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Coloring (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Polyamides (AREA)
• Artificial Filaments (AREA)
• Paints Or Removers (AREA)

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Citations (9)

• 0
  • IT IT649881D patent/IT649881A/it unknown
• 1960
  • 1960-05-19 CH CH576360A patent/CH389900A/de unknown
• 1961
  • 1961-04-19 US US103986A patent/US3211694A/en not_active Expired - Lifetime
  • 1961-05-17 FR FR862167A patent/FR1290568A/fr not_active Expired
  • 1961-05-18 NL NL264912D patent/NL264912A/xx unknown
  • 1961-05-18 DE DE1469868A patent/DE1469868C3/de not_active Expired
  • 1961-05-18 ES ES0267493A patent/ES267493A1/es not_active Expired
  • 1961-05-19 GB GB18402/61A patent/GB924002A/en not_active Expired

Patent Citations (9)

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